What Is Obstructive Sleep Apnea?
Obstructive sleep apnea is a sleep disorder where the upper airway repeatedly collapses during sleep, blocking airflow for ten seconds or longer[1]. Each blockage briefly wakes the brain so muscles can reopen the airway. Most people do not remember these arousals, but they fragment sleep and starve the body of oxygen.
OSA is common. International data estimate that close to one billion adults between 30 and 69 years old have OSA, with roughly 425 million in the moderate-to-severe range[4]. Prevalence is rising as obesity and average age increase across populations[1][4].
Severity is measured by the apnea-hypopnea index (AHI), the number of breathing events per hour of sleep. Mild OSA is 5 to 14 events per hour, moderate is 15 to 29, and severe is 30 or more[7]. Severity guides whether a patient needs CPAP, an oral appliance, surgery, or a combination.
Causes and Risk Factors
OSA happens when the soft tissues of the throat, tongue, and soft palate relax during sleep and crowd the airway[1]. Anatomy, weight, age, and lifestyle all influence how likely the airway is to collapse.
Anatomic Factors
Jaw and airway shape play a large role. A small or set-back lower jaw (retrognathia), a narrow upper jaw, a large tongue, enlarged tonsils, or a long soft palate can all reduce the space behind the throat[1][4]. These structural traits often run in families.
Weight, Age, and Lifestyle
Excess weight, especially around the neck, is the strongest modifiable risk factor[1][3]. Risk also rises with age and is higher in men until women reach menopause, after which rates begin to even out[4]. Alcohol, sedatives, and smoking worsen airway collapse and inflammation[1].
Children and Pediatric OSA
In children, enlarged tonsils and adenoids are the most common cause[2][6]. Narrow palates and underdeveloped jaws also contribute. When OSA persists after adenotonsillectomy, expert guidelines recommend a structured workup that may include orthodontic and surgical evaluation[6].
Symptoms and Diagnosis
Common signs of OSA include loud snoring, witnessed pauses in breathing, gasping awakenings, morning headaches, dry mouth, and daytime sleepiness[1][7]. Many patients first hear about their snoring from a bed partner.
What Patients Notice
Daytime symptoms often matter more than nighttime ones. Patients may report trouble concentrating, mood changes, low energy, or falling asleep while driving or in meetings[1]. Children with OSA may show bedwetting, poor school performance, or behavior that looks like attention-deficit disorder[2].
How OSA Is Diagnosed
Diagnosis requires a sleep study. An in-lab polysomnogram measures brain waves, breathing, oxygen, and movement. A home sleep apnea test is a smaller device that measures airflow, effort, oxygen, and heart rate, and is appropriate for many adults with a high pretest probability of moderate to severe OSA[1][7]. A physician interprets the study and confirms the AHI.
When to Seek Care
Talk to a doctor if you snore loudly most nights, wake up gasping, feel sleepy during the day despite enough sleep, or have high blood pressure that is hard to control[1][9]. Untreated OSA raises the risk of cardiovascular disease, stroke, and motor vehicle crashes, so early evaluation matters[3][9].
Treatment Options
Treatment ranges from behavior change to airway surgery, and the right choice depends on severity, anatomy, and patient preference[4][7]. Most patients begin with CPAP or an oral appliance before considering surgery.
CPAP and Positive Airway Pressure
Continuous positive airway pressure (CPAP) is the first-line therapy for moderate to severe OSA[4][7]. A bedside machine delivers pressurized air through a mask to keep the airway open. CPAP is highly effective when used, but long-term adherence is often below 50%, which is why backup options matter[4].
Oral Appliance Therapy
Mandibular advancement devices (MADs) are custom-made dental appliances that hold the lower jaw slightly forward during sleep, opening the airway behind the tongue. A systematic review found that adjustable, custom MADs lower the AHI in mild to moderate OSA and are a reasonable option for patients who cannot tolerate CPAP[8]. They are typically fitted by dentists with sleep training and adjusted over several visits.
Weight Loss and Positional Therapy
Weight loss can meaningfully reduce AHI in patients with overweight or obesity and may even resolve mild cases[1][4]. Avoiding alcohol near bedtime and sleeping on the side rather than the back also helps some patients. These steps are usually combined with another therapy rather than used alone for moderate or severe disease.
Surgical Options From an Oral Surgeon
When CPAP and oral appliances fail or cannot be tolerated, an oral and maxillofacial surgeon can offer airway surgery[4][11]. Procedures are chosen based on where the airway collapses and on facial anatomy.
Maxillomandibular advancement (MMA) moves both the upper and lower jaws forward, enlarging the airway from the soft palate down to the tongue base. International consensus reports it as one of the most effective surgical options for adult OSA, with high rates of significant AHI reduction in carefully selected patients[4].
Other procedures include genioglossus advancement (which pulls the tongue base forward), uvulopalatopharyngoplasty (UPPP) on soft palate tissue, and hypoglossal nerve stimulation in select patients[4]. An oral surgeon often coordinates with a sleep physician and ENT to match the procedure to the site of obstruction. Learn more on the oral-surgery page.
Treatment in Children
Adenotonsillectomy is the first-line surgical treatment for most children with OSA[6]. When OSA persists, a structured workup may include rapid maxillary expansion, mandibular advancement, or other orthodontic and surgical care[2][5][6]. A meta-analysis found that orthopedic and functional orthodontic treatment can lower AHI in selected children, although study sizes were small[5].
Recovery and Aftercare
Recovery depends on which treatment a patient receives, ranging from a few nights of mask adjustment with CPAP to several weeks after jaw surgery. Follow-up sleep testing confirms how well the treatment is working[7].
After CPAP or Oral Appliance
CPAP users typically work with a sleep clinic to fit the mask, adjust pressure, and review nightly use data. Oral appliance patients return for adjustments over several weeks as the jaw position is fine-tuned[8]. A repeat sleep study, often with the device in place, is usually ordered to confirm the AHI has dropped into a safe range[7].
After Airway Surgery
Recovery from soft tissue procedures such as UPPP usually involves one to two weeks of throat pain and a soft diet. After MMA, patients can expect facial swelling, a soft or liquid diet for several weeks, and a return to most normal activities by six to eight weeks, with full bone healing taking several months[11]. Patients are followed with imaging, dental occlusion checks, and a follow-up sleep study to measure outcomes.
Long-Term Monitoring
OSA is a chronic condition, and weight changes, aging, or new medications can change airway behavior over time[1]. Annual check-ins with the sleep physician, dentist, or oral surgeon help catch returning symptoms early. Patients should also keep up with cardiovascular care, since treating OSA is one part of overall heart health[9].
Cost Factors
OSA care is usually covered as a medical condition, not a dental one, but out-of-pocket costs can still vary widely. Costs vary by location, provider, and case complexity.
Sleep Studies and Workup
Home sleep apnea tests typically range from about $150 to $500, while in-lab polysomnograms often run from $1,000 to $3,000 before insurance. Most medical insurance plans cover sleep testing when symptoms suggest OSA, but deductibles and copays apply. Costs vary by location, provider, and case complexity.
Treatment Costs
CPAP machines typically cost about $500 to $3,000 for the device, mask, and supplies, and are commonly covered as durable medical equipment. Custom oral appliances usually range from about $1,500 to $4,000 and are often partially covered by medical plans for diagnosed OSA. Airway surgery, including MMA, typically falls in the $20,000 to $60,000 range when facility, surgeon, and anesthesia fees are combined, and is generally billed under medical coverage. Costs vary by location, provider, and case complexity.
Insurance and Financing
Because OSA is a medical diagnosis, treatment is typically billed to medical insurance rather than dental insurance, even when a dentist provides the oral appliance[8]. Many oral surgery offices offer payment plans or third-party financing for the patient share. Patients should ask for a written estimate, prior authorization details, and a list of in-network options before starting treatment.
When to See a Specialist
Diagnosis starts with a primary care physician or sleep medicine doctor, but specialists step in when treatment becomes complex[1][7]. A general dentist can screen for snoring and refer patients with suspected OSA for testing.
Dentists with sleep medicine training are well suited to make and manage oral appliances for mild to moderate OSA[8]. An oral and maxillofacial surgeon is the right specialist when CPAP and oral appliances have failed, when imaging shows skeletal narrowing of the airway, or when jaw position is the main driver of obstruction[4][11].
In many cases, the best care is team-based: a sleep physician confirms the diagnosis and tracks AHI, the dentist or oral surgeon manages the airway intervention, and the primary care physician monitors blood pressure, weight, and heart health[3][9].
Find an Oral Surgeon for Sleep Apnea Care
If you have been diagnosed with obstructive sleep apnea and CPAP is not working, an oral and maxillofacial surgeon can review your airway anatomy and walk you through surgical options. Browse the oral-surgery page to find a specialist near you and book a consultation.
Search Oral Surgeons in Your Area
